Microstructural Control of Nb Addition in Nanocrystalline Hard Magnets with Different Nd Content

Y. Q. Wu; M. J. Kramer; Z. Chen; B. M. Ma; D. H. Ping; K. Hono

doi:10.1109/TMAG.2003.815751

Microstructural Control of Nb Addition in Nanocrystalline Hard Magnets with Different Nd Content

Y. Q. Wu, M. J. Kramer, Z. Chen, B. M. Ma, D. H. Ping, K. Hono

Research and Economic Development

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Abstract

The effects of Nb addition on the hard magnetic properties and microstructure evolution in Nd₈Fe_78-xCo₈B ₆Nb_x and Nd₁₂ Fe_82-x B ₆Nb_x nanocrystalline alloys are presented. Low Nd containing alloys consist of α-Fe and Nd₂Fe₁₄B phases. The Nd₁₂Fe_80.5B₆Nb_1.5 alloy probably contains NbFeB phase besides the α-Fe and Nd₂Fe ₁₄B phases. It is found that Nb atoms tend to enrich at grain boundary region, resulting in refined microstructure and significantly improved coercivity over a range of conventional Nd-Fe-B alloys.

Original language	English
Pages (from-to)	2935-2937
Number of pages	3
Journal	IEEE Transactions on Magnetics
Volume	39
Issue number	5 II
DOIs	https://doi.org/10.1109/TMAG.2003.815751
State	Published - Sep 2003

Keywords

Electron microscopy
Nanocrystalline
Nb
Permanent magnets

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title = "Microstructural Control of Nb Addition in Nanocrystalline Hard Magnets with Different Nd Content",

abstract = "The effects of Nb addition on the hard magnetic properties and microstructure evolution in Nd8Fe78-xCo8B 6Nbx and Nd12 Fe82-x B 6Nbx nanocrystalline alloys are presented. Low Nd containing alloys consist of α-Fe and Nd2Fe14B phases. The Nd12Fe80.5B6Nb1.5 alloy probably contains NbFeB phase besides the α-Fe and Nd2Fe 14B phases. It is found that Nb atoms tend to enrich at grain boundary region, resulting in refined microstructure and significantly improved coercivity over a range of conventional Nd-Fe-B alloys.",

keywords = "Electron microscopy, Nanocrystalline, Nb, Permanent magnets",

author = "Wu, {Y. Q.} and Kramer, {M. J.} and Z. Chen and Ma, {B. M.} and Ping, {D. H.} and K. Hono",

year = "2003",

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doi = "10.1109/TMAG.2003.815751",

language = "English",

volume = "39",

pages = "2935--2937",

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TY - JOUR

T1 - Microstructural Control of Nb Addition in Nanocrystalline Hard Magnets with Different Nd Content

AU - Wu, Y. Q.

AU - Kramer, M. J.

AU - Chen, Z.

AU - Ma, B. M.

AU - Ping, D. H.

AU - Hono, K.

PY - 2003/9

Y1 - 2003/9

N2 - The effects of Nb addition on the hard magnetic properties and microstructure evolution in Nd8Fe78-xCo8B 6Nbx and Nd12 Fe82-x B 6Nbx nanocrystalline alloys are presented. Low Nd containing alloys consist of α-Fe and Nd2Fe14B phases. The Nd12Fe80.5B6Nb1.5 alloy probably contains NbFeB phase besides the α-Fe and Nd2Fe 14B phases. It is found that Nb atoms tend to enrich at grain boundary region, resulting in refined microstructure and significantly improved coercivity over a range of conventional Nd-Fe-B alloys.

AB - The effects of Nb addition on the hard magnetic properties and microstructure evolution in Nd8Fe78-xCo8B 6Nbx and Nd12 Fe82-x B 6Nbx nanocrystalline alloys are presented. Low Nd containing alloys consist of α-Fe and Nd2Fe14B phases. The Nd12Fe80.5B6Nb1.5 alloy probably contains NbFeB phase besides the α-Fe and Nd2Fe 14B phases. It is found that Nb atoms tend to enrich at grain boundary region, resulting in refined microstructure and significantly improved coercivity over a range of conventional Nd-Fe-B alloys.

KW - Electron microscopy

KW - Nanocrystalline

KW - Nb

KW - Permanent magnets

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U2 - 10.1109/TMAG.2003.815751

DO - 10.1109/TMAG.2003.815751

M3 - Article

AN - SCOPUS:0141987683

SN - 0018-9464

VL - 39

SP - 2935

EP - 2937

JO - IEEE Transactions on Magnetics

JF - IEEE Transactions on Magnetics

IS - 5 II

ER -

Microstructural Control of Nb Addition in Nanocrystalline Hard Magnets with Different Nd Content

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Keywords

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